package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`\b(?:(?:25[0-5]|2[0-4][0-9]|1?[1-9][0-9]?|10[0-9])(?:(?<!\.)\b|\.))(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(?:(?<!\.)\b|\.)){3}`)
var str = `Match on VALID IP address anywhere in string.
192.1683.0.1 1.1.1.256 3.2.6.2351 300.3.3.3 192.168.10.10 127.0.0.999
255.255.256.255 255.255.255.2555 100.0.0.1 1000.0.0.1
192.168.10.10
100.0.0.1`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/